MATLAB Code for MC-CDMA System Including Transmission

This MATLAB code implements a complete MC-CDMA (Multi-Carrier Code Division Multiple Access) system including transmission, reception, and Nakagami channel simulation. MC-CDMA is a multi-carrier CDMA technique that enables high-capacity, high-rate communications in multi-user environments. In the transmission module, the MATLAB code implements data symbol mapping across multiple subcarriers using orthogonal spreading codes (such as Walsh-Hadamard codes) to achieve parallel multi-user transmission. The implementation typically involves serial-to-parallel conversion, spreading code allocation, and OFDM modulation with IFFT operations. The reception module performs demodulation and decoding processes to recover the original data from received signals. This includes FFT-based OFDM demodulation, despreading using matched filters or MMSE equalizers, and parallel-to-serial conversion. The code implements various detection algorithms like maximum likelihood detection or interference cancellation techniques. The Nakagami channel transmission module simulates realistic fading and noise effects encountered in practical communication scenarios. The implementation generates Nakagami-distributed fading coefficients using MATLAB's random number generation functions, allowing accurate evaluation of system performance under different fading conditions (m-parameter variations) and signal-to-noise ratios.